The product is made from clear glass material, durable and practical. Suction cup type feeder can also as aquarium, shrimp cylinder planarizing capture, reduce damage of planaria, leech on the young, shrimp, also features added to the view. Features - Color: As shown. - Material: Glass. - Size: 4.5x4.5x5cm - Throughable to all types of freshwater and saltwater aquarium, small tropical fish feed. - Through trousers shaped feeder, extended live insects into the cylinder after the survival time, fish are forced in the competition for food in the process of produce hunger, and competition In the same sense of urgency, so that its body color is better show and the enjoyment of feeding. - Suction cup type feeder can also as aquarium, shrimp cylinder planarizing capture, reduce damage of planaria, leech on the young, shrimp, also features added to the view. - Warm Tip: Dear buyer, Due to lighting effect,monitor's brightness,manual measurement and etc, there could be some slight differences in the color and size between the photo and the actual item. sincerely hope that you can understand Thank you